Lubricating device.



No. 836,253. PATENTED NOV. 20, 1906. F. W. HALL.

LUBRIGATING DEVICE.

APPLICATION FILED MAR. 16, 1906.

FREDERICK W. HALL. OF MERCHANTVILLE, NEIV JERSEY.

LUBRICATING DEVICE.

Specification of Letters Patent.

Patented Nov. 20, 1906.

Application filed March 16,1906. Serial No. 306.328.

To all IUh/O'II b it nuty concern;

Be it known that I, FREDERICK W. HALL, a citizen of the United States,residing at Merchantville, Camden county, State of New Jersey, have invented certain new and useful Improvements in Lubricating Devices, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, forming a part of this specification.

My invention relates to lubricating devices adapted to be applied to various mechanical tools requiring oil or other like lubricant, and has for its object the provision of a simple device of that class easily applied or removed, adapted to contain a liquid or semiliquid lubricant, and comprising self contained means operating to discharge its contents when and as required.

To these ends my invention consists of a lubricating device comprising in combination two sections mounted sleeve-like and one of which. is rotatable relatively to the other, with an annular groove constituting an oil-reservoir and piston-chamber formed in one of them and between their coinciding faces, an inlet for oil in one of the sections, and a piston carried by said section projecting into the annular groove between the sections, and a partitioning-lug in the other section and forming the basal wall of the pistonchamber, with a discharge-aperture in said piston-chamber above the basal wall thereof.

In the accompanying drawings, illustrating my invention, Figure 1 is a side elevation of my lubricating device shown applied to a lathe-center. Fig. 2 is a front view of same. Fig. 4 is a rear view of same. Fig. 3 is a section on line 3 3 of Fig. 1 looking to the left, the arrow showing the direction of rotating movement of the outer ring relatively to the inner fixed ring to operate the device, the parts being shown in initial position with the piston at the beginning of its stroke. Fig. 5 is an elevation in perspective of the outer ring of the lubricator detached from the inner ring. Fig. 6 is a like view of the inner ring detached. Fig. 7 is an elevation of the lathe center and a section transverse to that of Fig. 3 of the inner and outer rings in assembled position.

Referring now to said drawings, my invention is shown exemplified in a form adapted for supplying oil to a lathe-center, (indicated at A in the several figures.) It is particularly desirable for such purpose, as in such a tool the oint of the center, which is fixed rela tive y to the work acted on, becomes quickly heated and requires constant oiling.

In Figs. 5 and 6 the two sections of my lubricator are shown in separate perspective elevations. In Fig. 6 the fixed section a is shown as a disk which is centrally bored at a to slip it onto the end of the lathe-center A, on which it is held by friction, and the periphery of this disk has a deep annular groove of, constituting an oil-chamber, in one wall of which is a discharge-opening, preferably a short inclined nozzle a Mounted fixed within said annular groove of the disk is alug a, operating as a partition in said chamber and also as a stop for the rotatable annular section of the device hereinafter described. Said rotatable section b is shown in detached elevation in Fig. 5 and consists of an annular band adapted to encircle the disk a and form the outer closing-wall of its peripheral groove, the parts being suitably provided with a propriate lip and flange to provide a close t, while at the same time it allows the ring I) to be rotated on the disk a. In some instances, as where the coinciding faces are not machined to fit accurately, a packing-ring (indicated at b, Fig. 7) may be inserted.

The ring I) is knurled exteriorly at b to provide a frictional hold for the fingers in rotating it and is apertured at b to provide an inlet for oil to supply the annular oil-chamber a in the disk 0.. On the inner face of the ring I) is fixedly mounted a lug b adapted to fit the annular groove on the periphery of the disk, and its function is that of a piston.

The supply-inlet b in and the piston carriedby the rotatable ring, as also the discharge-outlet a in the fixed disk and the stop or partition lug carried thereby, are preferably in close contiguity when the parts are in initial position, in order to enlarge to a maximum the oil-holding capacity of the oilchamber and incidentally to prevent a premature discharge of oil; but the arrangement of the stop and partition lug a on the disk and the piston-lug 11* on the rotatable rin relatively to each other and to said inlet and discharge openings is essential. For example, (see Fig. 3,) the partition or stop-lug 0 shown therein as carried by the peripherallybe interposed between chambered disk, must opening uppermost. Hence, as shown in said Fig. 3, the piston b is in initial position at the beginning of its stroke. To discharge oil when needed, a slight rotation of the ring in the direction of the arrow inlet-aperture 6 beyond the closing it as an outlet, and W1 1 cause the piston b to force the oil out of the chamber through the discharge-opening a reversed, provided the a and piston-lug b 'spect of the sections on and by which they are respectively mounted and tion carrying a lug operating as the basal wall of the piston-chamber, with a dischar eopening at or near the operative base of t e annular reservoir and piston-chamber, and the other section carrying an oppositely-disposed lug operating as a piston, with an inletaperture in its peripheral wall;

will carry the. artition-lug a carried without departing from the principle of the in, vention, the characteristic principle of con- I claim as my invention and desire to secure by Letters Patent 1. A lubricating device comprising in combination a pair of sleeve-like sections, one of which is rotatable relatively to the other, one of the coinciding faces ofsaid sections being annularly grooved to o erate as an oil-reservoir and piston-chamber, an oil-discharge aperture provided in the wall of said groove, a partitioning-lug projecting into the same and operating as the basal wall of said chamber, an inlet provided for oil in the other of said sections, and a piston carried by said last-named section, adapted to be operatively moved in said annular groove of the opposite section to discharge oil therefrom.

2. A lubricating section peripherally grooved to form an oil-reservoir and pistonchamber, a partitioning-lug mounted therein and adapted to form the basal Wall of said chamber, a discharge-opening in the Wall thereof, a ring mounted sleeve-like thereon and adapted to form a rotatable exterior wall of said peripheral groove of the disk, a lug mounted on the inner surface of the rotatable ring, projecting into said peripheral groove of the disk-section and adapted to operate therein as a piston, said rotatable ring having an oil-inlet communicating with the peripheral groove of the disk.

In testimony whereof I have hereunto afiiXed my signature this 9th day of March, A. D. 1906.

FREDERICK w. HALL.

Witnesses: v

HENRY T. GULLMANN, A. M. BIDDLE.

device comprising a centrally-bored disk-shaped It is obvious that the relative direction of rotation of the sections a and b and of the in- 1 let and outlet ports on the sections may be partition or stop-lug be also reversed in re 

